Stackable bin



FIG. 1 is a perspective view showing the stackable bin;

FIG. 2 is a top view of the stackable bin;

FIG. 3 is a bottom view of the stackable bin;

FIG. 4 is a left side view of the stackable bin;

FIG. 5 is a right side view of the stackable bin; and,

FIG. 6 is an end view of the stackable bin. 

The ornamental design for a stackable bin, as shown. 